What is a circular mil used for?

A circular mil measures the area of a circle with a diameter of one mil and is primarily used to specify the cross-sectional area of round electrical conductors.

How many circular mils are in one circular inch?

One circular inch is equal to 1,000,000 circular mils.

Can this converter be used for irregular shapes?

No, this tool is intended for conversions involving round cross-sectional areas only and is not suitable for irregular shapes.

How to Convert from Circular mil to Circular inch?

Easily convert area measurements from circular mil to circular inch with this practical online unit converter. Ideal for electrical and mechanical applications.

Circular mil

Circular inch

Please check your input. It must be a valid numeric value.

Circular mil to Circular inch Conversion Table

Circular mil	Circular inch

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Circular mil to Circular inch Conversion Table
Circular mil	Circular inch

Explore More Area Units Converter

What Is This Tool?

This conversion tool helps you change measurements from circular mil to circular inch, units commonly used to define cross-sectional areas of round electrical conductors and mechanical rods.

How to Use This Tool?

Enter the value in circular mil you want to convert
Select circular mil as the from-unit and circular inch as the to-unit
Initiate the conversion to get the corresponding value in circular inch

Key Features

Converts circular mil values to circular inch using accurate unit definitions
Supports applications in electrical wiring, cable sizing, and mechanical engineering
Browser-based and simple to use without the need for installation

Examples

500,000 circular mil equals 0.5 circular inch
2,000,000 circular mil equals 2 circular inches

Common Use Cases

Determining cross-sectional areas of electrical wires and cables for sizing and ampacity calculations
Converting American Wire Gauge sizes to area for resistance and current capacity
Documenting power distribution conductors’ areas in procurement and engineering records

Tips & Best Practices

Use the tool for round cross-sectional areas only, as it’s not suitable for irregular shapes
Ensure precision when handling small decimal values resulting from conversions
Consider SI unit conversions for international or metric standards compatibility

Limitations

Circular mil is most accurate for very small diameter measurements
Conversions may produce small decimal values requiring careful interpretation
Not applicable for areas with irregular shapes and is not an SI unit

Frequently Asked Questions

What is a circular mil used for?: A circular mil measures the area of a circle with a diameter of one mil and is primarily used to specify the cross-sectional area of round electrical conductors.
How many circular mils are in one circular inch?: One circular inch is equal to 1,000,000 circular mils.
Can this converter be used for irregular shapes?: No, this tool is intended for conversions involving round cross-sectional areas only and is not suitable for irregular shapes.

Key Terminology

Circular mil: A unit of area equal to the area of a circle with a diameter of one mil (0.001 inch), commonly used for small round electrical conductors.
Circular inch: The area of a circle with a diameter of one inch, equal to π/4 square inches and equivalent to 1,000,000 circular mils.
Cross-sectional area: The area of a particular section of a round conductor or rod, important for determining electrical and mechanical properties.

Quick Knowledge Check

What does one circular mil represent?

Area of a circle with diameter of one inch

Area of a circle with diameter of one mil

Length of a circle's circumference in mils

How many circular mils equal one circular inch?

10,000

1,000,000

100,000

What is the primary use of circular inch?

Measuring rectangular areas

Expressing cross-sectional area of large round conductors

Calculating volume of cylinders